/Engine/Source/Runtime/Engine/Classes/Engine/World.h
A static map that is populated before loading a world from a package. This is soUWorldcan look up its WorldType in PostLoad
static [TMap](API\Runtime\Core\Containers\TMap)< [FName](API\Runtime\Core\UObject\FName), [EWorldType::Type](API\Runtime\Engine\Engine\EWorldType__Type) > WorldTypePreLoadMap;